Wisconsin protest signs

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Kathryn Schulze wears a message written on tape over her mouth inside the state Capitol in Madison, Wis. Opponents to Gov. Scott Walker's bill to eliminate collective bargaining rights for many state workers are taking part in their seventh day of protesting. Jeffrey Phelps/AP

Shane Cupertino, of Fond du Lac, Wis., waves a plastic baseball bat with a sign protesting against Gov. Scott Walker's bill which proposes changing collective bargaining rights for most public employees in the state of Wisconsin in front of the Fond du Lac's Chamber of Commerce, on Feb. 23. Justin Connaher/The Reporter/AP

Julia Rossomme of Atlanta (c.) holds a sign in support of Wisconsin Gov. Scott Walker as her husband, Gary Rossomme (l.), and Tom Martin, also of Atlanta, attend a protest against a labor rally across the street in solidarity with Wisconsin's union workers on Feb. 23, outside the state Capitol in Atlanta. David Goldman/AP

Tea party supporters and union supporters show their respective sign during a large demonstration at the State Capitol in Madison, Wis., on Feb. 19. A few dozen police officers stood between supporters of Republican Gov. Scott Walker on the muddy east lawn of the Capitol and the much larger group of pro-labor demonstrators who surrounded them. The protest was peaceful as both sides exchanged chants of 'Pass the bill! Pass the bill!' and 'Kill the bill! Kill the bill!' Andy Manis/AP

Rich Yaeger of Madison, Wis., waves his flag and a sign at a tea party rally at the state Capitol in Madison, Wis., on Feb. 19. Andy Manis/AP

A man holds a sign from a balcony during a protest at the state Capitol in Madison, Wis., on Feb. 18. Union members, students, and others have been protesting the governor's bill to eliminate collective bargaining rights for many state workers. Max Gersh/The Rockford Register-Star/AP

Police officers walk around the rotunda holding protest signs at the state Capitol in Madison, Wis., on Feb. 23, on the ninth day of protests against Gov. Scott Walker's plan to strip public sector workers of nearly all of their bargaining rights. Andy Manis/AP

Karen Wallace (r.) and Meryleigh Brainerd (l.), both teachers in Calaveras County join in a candlelight vigil in front of the state Capitol to express sympathy with union members in Wisconsin on Feb. 22 in Sacramento, Calif. Robert Durell/AP

Edith Conn from Detroit takes part in a protest outside the Max Fischer Music Center in Detroit before the start of the State of the City address on Feb. 22. About 100 musicians and members of other labor unions carried signs outside the music center after a day in which other union workers protested outside the capitols in Michigan, Wisconsin, and other states. Madalyn Ruggiero/The Detroit News/AP

Demonstrators protest outside of the Max Fischer Music Center in Detroit before the start of the State of the City address on Feb. 22. Kimberly P. Mitchell/The Detroit Free Press/AP

Luke Balsavich poses for a portrait with his sign as he marches around the Capitol while protesters gather in Madison, Wis., on Feb. 21. Darren Hauck/Reuters

A man sits amongst signs as protesters fill the Capitol building, after a week's mass protest against a proposed bill by Republican Governor Scott Walker, in Madison, Wis., on Feb. 21. Darren Hauck/Reuters

Supporters of Wisconsin Gov. Scott Walker demonstrate during a rally outside the Wisconsin state Capitol in Madison on Feb. 19. Steve Apps/Wisconsin State Journal/AP

Opponents to the governor's bill to eliminate collective bargaining rights for state workers march around the Capitol Square in Madison, Wis., on Feb. 19. Andy Manis/AP

Natalie Gandolfo joins thousands of demonstrators at the Capitol in Madison, Wis., to protest a bill that would strip most public workers of almost all their collective bargaining rights on Feb. 17. Dinesh Ramde/AP

Assailed first by a debt crisis, then acting as a front line in Europe’s migrant crisis, Greece has had an extremely difficult few years. Yet it has avoided civil conflict and has remained in the eurozone, contrary to many expectations.